Manifold gasket



. w. J. BLIFFERT MANIFOLIS GASKET Filed April 16 1923 Patented July 15,1924.

- TE-S WALTER J". BLIFFER'I", OF MILWAUKEE, WISCONSIN.

lvEANIFOLD GASKET.

Application filed April 16, 19 2-3. Serial Ito-632,447.

To all whom it may concern:

Be it known that lVAL'rnR J. BLIFFERT, a citizen of the United States,and resident of Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements in ManifoldGaskets; and I do hereby declare that the following is a full, clear,and exact description thereof.

This invention relates to attachments for the .intake manifolds ofinternal combustion engines for diluting the gas stream, and

V is particularly directed to a manifold gasket.

Objects of this invention are to provide a device adapted to bepositioned within the intake manifold of a gasoline engine pro vidingmeans for the introduction of air into the gas stream, which will insureadequate and thorough mixing of this incoming air with the flowing gasstream, which will improve the atomization of the fuel, and which willnot restrict the free flowing of the gas stream.

Further objects are to provide a gasket which may be inserted betweenthe carburetor and the intake manifold of the standard types of gasengines without requiring any further alteration, and which will insuremixing of the fresh air and the gas stream, which will introduce suchair at the portion of the gas stream which is most heavily loaded withfuel and which will atomize any liquid fuel that may collect upon thebottom of the intake pipe.

An embodiment of the invention is shown in the accompanying drawings, inwhich:

being in section to more clearly illustrate the construction.

Figure 2 is an enlarged View of the gasket removed from other portionsof the apparatus.

Figure 3 is a section on the line 33 of Figure 2, showing the gasket inthe position that it occupies when in use, and illustrating particularlythe lower portion of the gasket.

Between the flanges 1 0f the carburetor 2 and the flanges 3 of theintake manifold 4: the gasket 5 is positioned. This inserting of thegasket may be readily accomplished in standard equipments by merelyloosening the connecting bolts (not shown) and slipping the gasket inposition. This operation is greatly facilitated by providing asubstantially horizontal open notch 6 on one side of the gasket for thereception of one of the bolts and providing an upwardly opened notch 7upon the other side of the gasket for the reception of the otherattaching bolts, whereby the gasket may be slipped into position withthe notch 6 surrounding one of the bolts and may thereafter be pivotedabout such bolt and rocked into its correct positionthe notch 7 passingover the other bolt during this process. When in po sition the centralaperture 8 of the gasket alines within the interior of the pipes. A lip9 formed integrally with the gasket extends upwardly and to the rear ina manner as illustrated particularly in Figures 2 and 8. This lip 9 isprovided with a channel 10 which gradually deepens as the body portionof the gasket is approached and finally passes completely through thegasket, thereby forming the slot 11 through the body of the gasket.

The point at which the channel 10 merges into the slot 11 isapproximately the point where the gasket is gripped between the flanges1 and 3, as may be seen from Figure 3.

The operation of the apparatus is as follows :The suction draws airinwardly through the slot 11 and the channel 10 and the incoming air isdirected rearwardly, as is indicated by the arrows in Figure 1. Thisinwardly directed air contacts with the outwardly flowing stream of gasand violently commingles therewith. It is to be noted that this mixingoccurs adjacent the lower portion of the stream and extends in a lesspro nounced manner towards the upper portion. The lower portion of thegas stream usually contains the greatest amount of fuel and isconsequently densest and thus the dilution is needed more at thisportion of the stream than at any other portion.

It is also'to be noted that the liquid, which collects or condenses uponthe walls of the It will further be seen that manifold gasket has beenprovided which will accomplish the above enumerated functions, which maybe readily inserted in position, and which may be cheaply and readilymanufactured.

Although one specific form of the invention has been described inconsiderable detail, it is to be understood that the invention may bevariously embodied and is to be limited only as defined by the appendedclaims.

I claim a 1-. A manifold gasket adapted to be positioned betweenadjacent flanges of the intake system of" an internal combustion engine,said gasket comprising a body portion haying an aperture correspondingto the bore of the intake system and having an integral lip'extendinginto said bore, said lip curving from the plane of the gasket and havinga channel formed therein, said body portion having a slit therethroughextend in" outwardly from said channel.

2. A manifold gasket adapted to be positioned between adjacent flangesof the intake system ofan internal combustion engine, said gasketcomprising a body portion having outwardly extendin slotted wings withthe slots therein eXten ing at substantially right angles to each other,said body portion having an aperture corresponding to the bore of theintake system, and having an integral lip extending upwardly from thelower portion of said gasket and curved out of the plane thereof as theinner end of the lip is approached, said lip having a groove therein,and said gasket having a slot communicating with said groove.

3. A manifold gasket adapted to be positioned between adjacent flangesof the in take system of an internal combustion engine, said gaskethaving an aperture corresponding to the bore of the intake system andhaving a curved lip projecting upwardly into said aperture, said lipbeing concaved on one side, and said gasket having a hole passingtherethrough from the outside to the aperture and opening on theconcaved side of said lip.

In testimony that I claim the foregoing I have hereunto set my hand atMilwaukee, in the county of Milwaukee and State of VVisconsin.

WALTER J. BLIFFERT.

